Results For: realclimate

Getting All Hot About Global Warming

In the News – April 6, 2007

Great blog article that lists references for both sides of the global warming argument.  This is fantastic.  Everyone should read this and follow the links if you are interested in reading both sides of this complicated issue.  I will summarize the references but make sure that you click through and find the complete reference.

My only complaint about this list is that it didn’t include this blog: as I think we are extremely balanced in our study of this issue.

The Alarmists:

  1. An Inconvenient Truth
  2. The Intergovernmental Panel on Climate Change.
  3. US Global Change Research Program.
  4. RealClimate
  5. Friends of the Earth International.


What triggers ice ages?

RealClimate – February 16, 2007

This is a moderately technical blog entry discussing an article in Climatic Change.  It is not too in depth though and the average interested reader should be able to understand it.  The premise of the article is a hypothesis that there needs to be more than just changes in the Earth’s orbit to trigger the entry into or out of an ice age.

Martinson & Pitman III’s hypothesis states that the fresh water input works in concert with the Milankovitch cycle and the albedo feedback. They conclude that ‘major’ terminations can only follow from glacial build-up of sufficient magnitude to isolate the Arctic, inhibiting the inflow of fresh water to the point that salinity buildup in the surface layer from slow but continuous growth of sea-ice, causes overturn of the Arctic (through the effect on the atmospheric circulation and the ocean currents). The vertical overturning brings warmer water up from below, setting conditions that are more favorable for ice melting.


How do we know that recent CO2 increases are due to human activities?

RealClimate – December 22, 2004

This is a very good article that answers the basic scientific question of how we know the source of excess carbon dioxide in the atmosphere. The simple testing is very similar to the way that archeologists can find the age of ancient ruins – they do carbon testing. Since the carbon in fossil fuels has depleted its supply of C14, and the volume of CO2 in the atomosphere is increasing in non-C14 amounts, we can assume that it did not come from recent sources.